#AC2621#AC2621

#AC2621 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.9% C 0.171 H 27.8°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#AC2621
RGB	rgb(172, 38, 33)
HSL	hsl(2, 68%, 40%)
HSV	hsv(2, 81%, 67%)
CMYK	cmyk(0%, 77.9%, 80.8%, 32.5%)
CIE-LAB	lab(38.32, 52.90, 37.01)
CIE-LCH	lch(38.32, 64.56, 34.98°)
OKLab	oklab(48.87% 0.1514 0.0799)
OKLCH	oklch(48.87% 0.171 27.8)
XYZ	xyz(17.9831, 10.2696, 2.4739)
Luminance	0.1027 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC2621 #21A7AC

analogous

#AC2162 #AC2621 #AC6B21

triadic

#AC2621 #21AC26 #2621AC

tetradic

#AC2621 #62AC21 #21A7AC #6B21AC

square

#AC2621 #62AC21 #21A7AC #6B21AC

split-complementary

#AC2621 #21AC6B #2162AC

monochromatic

#450F0D #791B17 #AC2621 #D83832 #E26A66

Accessibility & contrast

On white

6.88

#AC2621 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#AC2621 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC2621

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC2621	#FFFFFF	#000000	##FFFFFF
##AC2621	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50481F

Deuteranopia (green-blind)

#71651B

Tritanopia (blue-blind)

#BE0027

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ac2621;
/* rgb */ color: rgb(172, 38, 33);
/* oklch */ color: oklch(48.9% 0.171 27.8);

Tailwind

colors: {
  custom: {
    50: '#ce6c5d',
    500: '#ac2621',
    950: '#000000',
  },
}

SCSS

$custom: #ac2621;
$custom-light: #ce6c5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ac2621",
  "rgb": {
    "r": 172,
    "g": 38,
    "b": 33
  },
  "hsl": {
    "h": 2.158,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48869,
    "c": 0.17114,
    "h": 27.8
  },
  "luminance": 0.10267
}

Semantic roles & 50–950 ramp

primary

#AC2621

secondary

#62C3C7

accent

#E4EB3D

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #AC2621

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →